“…K E Y W O R D S cardiac disease, couple relationship, distress, partner support, patient activation, patient engagement Despite increasing survival rates and prolonged life expectancy, cardiac diseases, especially their acute manifestations, still represent important causes of death and disability. Cardiac disease contributes to patients' mood disorders, such as depression and anxiety (Cohen et al, 2015;Protogerou et al, 2015;Spatola et al, 2018Spatola et al, , 2021, which are significant risk factors for poor prognosis and adherence to medical recommendations, high mortality, and low quality of life (Alvarenga & Byrne, 2016). Although there has been much research on individual psychological outcomes after an acute cardiac event, some studies have started to underline the relational nature of the disease, exploring how the quality of partner support is associated with patient outcomes.…”